题目内容：

How Different Will Things Be 20 Years From Now? We asked readers to write to tell us about their predictions for life in the future.Here are a few of their responses.

I don’t think life will change a lot over the next 20 years.I think more people will be living in

even bigger cities than today.Fewer people will be living in the countryside.Pollution will be the most serious global problems.

-----Li Ling, Beijing We’ll be doing all our shopping online.I think shops are going to disappear and they will be

replaced(代替) by online shopping malls.The process(过程)has already started with some city supermarkets taking online orders. We’ll be able to buy anything，even buildings.

----Sharon, Sydney

I’m sure we won’t be driving cars or personal planes.I think it’s more likely that we’ll be

walking and riding bikes more.Oil (石油)is going to run ou（t

用尽） and cars are going to become

too expensive to use.Also，air pollution will be the biggest problem in cities so we’ll have to find other clean ways of transport.The railways will develop and there will be a lot more very fast trains.

1.As Li Ling,  will be the most serious problem.

A. People    B. Air pollution    C. Pollution    D. Oil

2.According to the passage, what’s the meaning of the underline word disappear?

A. 消失    B. 出现    C. 提高    D. 流行的

3.What will happen if there is no oil?

A. We will have to find other clean ways of transport.

B. There won’t be more fast trains

C. We will drive personal planes

D. Cars are going to become cheap to use

4.According to the four students, which is ture?

A. Rose thinks shops are going to disappear.

B. We will walk and ride bikes less

C. Students will spend less time online at home.

D. We will be able to buy anything on line at home

5.Which is the best title for the article?

A. The most serious problems in the future

B. Air pollution will be a major problem in cities

C. How different will things be in 20 years?

D. On-line shops will be more popular.